/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Blueprints/DisplayClusterBlueprintLib.h
Gets a list of all chromakey card actors on the level linked to the specified root actor.
static void FindChromakeyCardsForRootActor ( const [ADisplayClusterRootActor](API\Plugins\DisplayCluster\ADisplayClusterRootActor) * RootActor, [TSet](API\Runtime\Core\Containers\TSet)< [ADisplayClusterChromakeyCardActor](API\Plugins\DisplayCluster\ADisplayClusterChromakeyCardActo-) * > & OutChromakeyCards )